Julian and Gregorian Calendar Calculator

Converts between Julian and Gregorian calendar dates.

Julian and Gregorian Calendar
    1. Calendar

Julian and Gregorian Calendar
The Gregorian calendar is used for dates on and after October 15, 1582 AD.
    Julian and Gregorian Calendar
    [1-10] /39Disp-Num
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    [1]  2022/10/25 05:15   40 years old level / An engineer / Not at All /
    Purpose of use
    convert Julian date to Gregorian
    Bug report
    The calculator only converts from Gregorian to Julian, not the other way around, regardless of which radio button is pushed.
    from Keisan
    Julian calendar radio buttons are valid until October 4, 1582 AD.
    The Julian calendar was established until October 4, 1582 AD, so even if you specify the radio button "Julian calendar", it will be converted to the Gregorian calendar after that.
    [2]  2022/10/06 02:53   30 years old level / An office worker / A public employee / Very /
    Purpose of use
    Comical justification for being late "I would complete project X by the end of September, but never said whether that was in the Gregorian or Julian calendar". Needed to verify that it was still September in the Julian Calendar.
    [3]  2022/10/01 20:12   50 years old level / A teacher / A researcher / Very /
    Purpose of use
    See Birthdays
    Comment/Request
    We will be going back to this one very soon....research and "in the know" verified it. Fact!
    [4]  2022/09/24 23:14   20 years old level / A homemaker / Very /
    Purpose of use
    Convert between Julian and Gregorian Calendars
    [5]  2022/07/27 14:38   60 years old level or over / A retired person / Useful /
    Purpose of use
    Determine whether February 2, 1415 (Candlemas) celebrated as the shortest day of the year was actually equivalent to December 21 or 22 ( the winter solstice). It wasn’t!
    [6]  2022/06/20 02:23   60 years old level or over / A retired person / Very /
    Purpose of use
    Checking up on a history expert - part of whose degree covered the Tudor period. "Checking up" for fun.

    However, also interested in old church monuments. Sometimes it's useful to know if a date on a Tudor monument is before or after Xmas and the New Year. Gives added information.
    Comment/Request
    Easy to use. Hope there aren't any bugs. Nasty little things. Haven't found any yet!
    [7]  2022/05/18 10:08   40 years old level / Others / Useful /
    Purpose of use
    To find out my familys birthdates on different calenders
    [8]  2022/05/03 01:46   30 years old level / A teacher / A researcher / Not at All /
    Purpose of use
    They censor comments, especially the truthful ones.
    [9]  2022/05/02 16:19   60 years old level or over / A teacher / A researcher / Very /
    Purpose of use
    To compare Easter dates in the XIV.th century by the Julian and the Gregorian Calendar ( vs. astronomical full moons and ecclesiastical tables.)
    Comment/Request
    Interesting results - Thank you very much!
    [10]  2022/02/24 10:17   30 years old level / An office worker / A public employee / Very /
    Purpose of use
    Playing a mystery game with friends. One of the clues played with significant dates. Use of the Julian calendar was a possible solution.

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